HTML KickStart give you a good head start for creating your website. For developers, this starter kit provide pre-stylized and pre-configured functions for building blocks, slideshows, buttons, tabs, etc.
It is compatible with all major browsers, very easy to configure (just move the package to the root of your website). It is a time-saver when styling images, buttons, menus, icons, etc. It deserves to be installed and tested.
Get it for free at: http://www.99lime.com/.